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SpyIntel [72]
4 years ago
15

The distance between stars is typically measured in

Physics
2 answers:
Gelneren [198K]4 years ago
7 0
The correct answer is Light years
igor_vitrenko [27]4 years ago
6 0

Answer:

Light year

Explanation:

The distance between the stars is very large. The unit measure this distance should be very large. It is called light year.

One light year is defined as the distance traveled by the light in one year.

Speed of light is 3 x 10^8 m/s

Time taken is 1 year = 365 days  = 365 x 24 x 60 x 60 = 31536000 second

By using the formula

distance = speed x time

distance = 3 x 10^8  x 31536000 = 9.46 x 10^15 m

Thus , one light year is equal to 9.46 x 10^15 m.

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Explain how the gravitational potential energy of an object can be changed.
inna [77]

Answer:

Change in Potential energy, pe = Final potential energy - Initial potential energy

Explanation:

∆p.e = Final p.e - Initial p.e

From the equation ∆p.e = (mgh) final - (mgh) initial

4 0
3 years ago
Earth’s crust continuously melts and solidifies in the upper mantle. Why does oceanic crust solidify faster than continental cru
Softa [21]

The oceanic crust solidifies faster than the continental crust. Because when magma comes into contact with ocean water it cools faster than when it reaches continental rock. Option C is correct.

<h3>What is the crust?</h3>

The outermost layer of a terrestrial planet is referred to as its "crust."

In the upper mantle, the Earth's crust is constantly melting and solidifying. Compared to magma beneath the continental crust, the oceanic crust has a lower temperature.

Magma cools more quickly when it comes into touch with ocean water than when it hits continental rock. causes the continental crust to solidify more slowly than the oceanic crust.

Hence option C is correct.

To learn more about the crust refer;

brainly.com/question/13428623

#SPJ1

3 0
2 years ago
The resistance, R, to electricity of a cylindrical-shaped wire is given by the equation , where p represents the resistivity of
valentina_108 [34]

Answer:

infinity

Explanation:

Given that

Resistance = R

Resistivity = ρ

Length = L

Diameter = d

The resistance of wire R given as

R=\rho\dfrac{L}{A}

A=Area

A=\dfrac{\pi d^2}{4}

Now by putting the value of A

R=\rho\dfrac{L}{\dfrac{\pi d^2}{4}}

R=\rho\dfrac{4L}{\pi d^2}

When d tends to infinity then d² will also tends to infinity.

So when d tends to zero then the resistance tends to infinity.

Therefore answer is ---

infinity

7 0
3 years ago
Read 2 more answers
A mass of 3.6 kg oscillate on a horizontal spring with a spring constant of 160 N/m.
Darya [45]

Answer:

48.7 J

Explanation:

For a mass-spring system, there is a continuous conversion of energy between elastic potential energy and kinetic energy.

In particular:

- The elastic potential energy is maximum when the system is at its maximum displacement

- The kinetic energy is maximum when the system passes through the equilibrium position

Therefore, the maximum kinetic energy of the system is given by:

KE=\frac{1}{2}mv^2

where

m is the mass

v is the speed at equilibrium position

In this problem:

m = 3.6 kg

v = 5.2 m/s

Therefore, the maximum kinetic energy is:

KE=\frac{1}{2}(3.6)(5.2)^2=48.7 J

6 0
3 years ago
Why is the cathode ray oscilloscope evacuated?
Stels [109]

Answer:

please like

Explanation:

hope it helps you

7 0
3 years ago
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